Open AccessImproved Reliability‐Based Iterative Decoding of LDPC Codes Based on Dynamic Threshold
Author(s) -
Zhuo Ma,
Shuanyi Du
Publication year - 2015
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.15.0113.1265
Subject(s) - low density parity check code , decoding methods , algorithm , concatenated error correction code , computer science , soft decision decoder , serial concatenated convolutional codes , sequential decoding , code (set theory) , block code , set (abstract data type) , programming language
A serial concatenated decoding algorithm with dynamic threshold is proposed for low‐density parity‐check codes with short and medium code lengths. The proposed approach uses a dynamic threshold to select a decoding result from belief propagation decoding and order statistic decoding, which improves the performance of the decoder at a negligible cost. Simulation results show that, under a high SNR region, the proposed concatenated decoder performs better than a serial concatenated decoder without threshold with an E b / N 0 gain of above 0.1 dB.